{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T08:06:56Z","timestamp":1789632416682,"version":"build-2803163510"},"reference-count":33,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2017,3,21]],"date-time":"2017-03-21T00:00:00Z","timestamp":1490054400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Endovasc Ther"],"published-print":{"date-parts":[[2017,6]]},"abstract":"<jats:p>Purpose: To summarize a single-center experience using the single\/double chimney technique in association with thoracic endovascular aortic repairs (TEVAR) for aortic arch pathologies. Methods: From November 2007 to March 2016, 122 patients (mean age 50.4\u00b112.7 years, range 29\u201380; 92 men) with aortic arch pathologies underwent TEVAR combined with single (n=101) or double (n=21) chimney grafts to reconstruct the supra-aortic branches: 21 innominate arteries, 114 left common carotid arteries, and 8 left subclavian arteries (LSA). Pathologies included type B aortic dissection (n=47), aortic arch dissection (n=49), retrograde type A aortic dissection (n=8), thoracic aortic aneurysm (n=7), penetrating aortic arch ulcer (n=9), and post-TEVAR type I endoleak (n=2). Follow-up examinations included computed tomography at 0.5, 3, 6, and 12 months and yearly thereafter. Results: The aortic stent-grafts were deployed in zone 0 (n=21), zone 1 (n=93), and zone 2 (n=8). One (0.8%) of the 122 patients died at 4 days due to a perforated peptic ulcer. Type Ia endoleaks were found intraoperatively in 13 (10.7%) patients, including 3 with the double chimney technique. Type II endoleaks occurred in 6 (4.9%) patients; 3 were treated with duct occluders in the LSA. Postoperative chimney graft migration occurred in 1 (0.8%) patient with double chimneys; additional stent-grafts were deployed in both chimneys. Median follow-up was 32.3 months, during which 1 (0.8%) patient died after a stroke at 3 months. Chimney stent-graft patency was observed in the remaining 120 patients. Two (1.7%) secondary TEVARs were performed for distal aortic dissection. Nine asymptomatic type Ia endoleaks and 1 type II endoleak persisted in follow-up; a type II endoleak in 1 patient with Marfan syndrome sealed in 52 months. Conclusion: TEVAR with the chimney technique provides a safe, minimally invasive alternative with good chimney graft patency and low postoperative mortality during midterm follow-up. The double chimney technique should be used judiciously owing to its potential complications.<\/jats:p>","DOI":"10.1177\/1526602817698702","type":"journal-article","created":{"date-parts":[[2017,3,21]],"date-time":"2017-03-21T04:47:31Z","timestamp":1490071651000},"page":"383-393","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":70,"title":["Thoracic Endovascular Aortic Repair With Single\/Double Chimney Technique for Aortic Arch Pathologies"],"prefix":"10.1177","volume":"24","author":[{"given":"Tun","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Vascular Surgery, The 2nd Xiang-ya Hospital, Changsha, Hunan, China"},{"name":"Angiopathy Institute, Central South University, Changsha, Hunan, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chang","family":"Shu","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, The 2nd Xiang-ya Hospital, 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